- Description Burmese mountain tortoises for sale can make great pet tortoises and are considered the fourth largest tortoise in the world, adults in wild populations can reach up to 70 pounds, and grown from 16-24″. Burmese Mountain Tortoises are some of the most popular species of tortoise because of their large size, curious demeanor and ease of care. When choosing any tortoise for sale it is important that you purchase a healthy animal from an experienced tortoise breeder. Captive bred burmese brown tortoises for sale should always be purchased over a wild caught adult when possible.